An environmentally friendly paint device, comprising a material box fixedly installed on the frame, a material mixing chamber is arranged in the material box, a bogie is installed in the material mixing chamber, and the bogie includes an upper steering arm, a lower steering arm And the left and right correspondingly installed connecting arms between the upper steering arm and the lower steering arm, an upper guide slide plate and a lower guide slide plate are fixedly installed between the two connecting arms, and the midpoint of the upper end of the upper steering arm and A first steering shaft and a second steering shaft are respectively fixedly installed at the midpoint of the lower end of the lower steering arm, the upper end of the first steering shaft is steerably installed in the top wall of the mixing chamber, and the second steering shaft The lower end is steerably installed in the bottom wall of the mixing chamber, and the midpoints of the first steering shaft, the second steering shaft, the upper guide slide, the lower guide slide, the upper steering arm and the lower steering arm are provided with transparent hole, the top wall of the mixing chamber is provided with a placement chamber, the through hole is pivotably installed with a midpoint shaft, and the upper end of the midpoint shaft is fixedly installed in the top wall of the placement chamber.